Home / 280,148.74-386,623.53-159,301.27

Finding the Fourth Proportional to 280,148.74, 386,623.53 and 159,301.27

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Solution

The fourth proportional to 280,148.74, 386,623.53 and 159,301.27 is: 219,846.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,148.74 : 386,623.53 = 159,301.27 : x
  2. Step 2: Convert to fraction form
    280,148.74/386,623.53 = 159,301.27/x
  3. Step 3: Cross multiply
    280,148.74x = 386,623.53 × 159,301.27
  4. Step 4: Simplify right side
    280,148.74x = 61,589,619,340.88
  5. Step 5: Solve for x
    x = 61,589,619,340.88/280,148.74
  6. Step 6: Final answer
    x = 219,846.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.